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Finding the Fourth Proportional to 34,644.40, 51,918.78 and 15,877.76

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Solution

The fourth proportional to 34,644.40, 51,918.78 and 15,877.76 is: 23,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,644.40 : 51,918.78 = 15,877.76 : x
  2. Step 2: Convert to fraction form
    34,644.40/51,918.78 = 15,877.76/x
  3. Step 3: Cross multiply
    34,644.40x = 51,918.78 × 15,877.76
  4. Step 4: Simplify right side
    34,644.40x = 824,353,928.33
  5. Step 5: Solve for x
    x = 824,353,928.33/34,644.40
  6. Step 6: Final answer
    x = 23,794.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.